JP5961585B2 - Folding device with texture inspection function for fabric products - Google Patents

Description

  The present invention relates to a folding device having a function of inspecting the texture of a washed and dried fabric product.

  In the linen supply business, cloth products such as towels, sheets and other clothing or clothing such as gowns and yukatas are collected from customers, washed, dehydrated, ironed and folded, and delivered to customers again. The service is repeated. The fabric product is consumed every time washing is repeated, and the texture drops. Therefore, it is discarded at a certain point and replaced with a new one. Replacing whether to continue using or discarding is discriminated by a skilled worker by visual observation and touch, but the discrimination results vary to some extent. However, when the variation becomes large, a problem such as a point that the quality is deteriorated, or conversely, a product within the reference range is discarded.

  Focusing on such problems, the applicant has been conducting research and development on incorporating more objective judgment criteria as means and methods for judging the quality of fabric products. However, since this is a problem that belongs to the sensibility of the texture of fabric products, there is a problem that it is difficult to replace with mechanical means and methods. Physical properties that affect the texture of the fabric include tension, shear, bending, compression, surface friction, surface irregularities, thickness, mass, etc. The physical properties described above are used as technical evaluation methods for clothing fabrics. It is also possible to measure and evaluate the texture. However, it is impossible to carry out the above method for each piece of fabric product in the folding process. On the other hand, the present inventor has found that mass is the most effective as a continuously measurable characteristic for each product. That is, among the physical characteristics that affect the texture, the mass can be measured accurately, and the degree of wear of the fabric product can be accurately grasped.

  In addition, although it cannot be called a prior art, there exists a technique regarding folding of a sheet material. That is, Japanese Patent Laid-Open No. 6-24642 can efficiently perform a weighing operation and a wrapping operation in the case where two kinds of articles, one of which is made of sheet material, are wrapped together to a target weight, such as garlic kelp, Another object of the present invention is to provide a sheet material folding method and apparatus that can save labor. However, this is intended to produce a product with a constant weight and is not directly applicable to the present invention.

JP-A-6-24642

  The present invention has been made in view of the above circumstances, and its problem is to inspect the texture of the cloth product by precise measurement of mass, perform folding, and perform classification based on the inspection result, to check the texture. And performing the folding efficiently. In addition, another object of the present invention is to maintain a constant quality by reducing the variation in the quality judgment of the fabric product, and to eliminate the waste of discarding those within the reference range. To provide a folding device having a texture inspection function of a product.

In order to solve the above-mentioned problems, the present invention relates to a folding device having a function of inspecting the texture of a washed and dried fabric product, before the washed and dried fabric product is put into the folding process or the fabric product. Is placed in the folding process, a mass measuring instrument for measuring the mass of the fabric product is provided, and the measured value of the mass is compared with the range of the mass reference value for the fabric product. By determining whether or not it is within the range of values, a determination unit for inspecting the texture of the fabric product is provided on the apparatus body side, and the folded fabric product is classified according to the determination result in the determination unit. It is a measure to do.

  Further, the present invention is a folding apparatus having a function of inspecting the texture of a washed and dried fabric product, and measures the mass of the fabric product and a loading conveyor that feeds the washed and dried fabric product into the folding process. For this purpose, at least one of an inspection process unit including a mass measuring instrument provided on the input conveyor and the cloth product that has finished the inspection process unit is conveyed, and the cloth product is folded into a required form by the folding means in the conveyance process. The folded part of the part, the measured value of the mass in the inspection process, and the range of the reference value of the mass determined in advance for the cloth product are compared, and it is determined whether or not the measured value is within the range of the reference value. A discrimination unit is provided, and the folded fabric product is sorted according to the discrimination result in the discrimination unit, and the fabric product outside the reference value range is discarded. Door can be.

  The apparatus of the present invention is a folding apparatus having a configuration in which a mass measuring instrument is provided in a cloth product conveying process. The mass of the fabric product is measured before the fabric product is put into the folding process or after the fabric product is put into the folding process. The cloth product is input to the folding process by the input conveyor, but before being input to the above process means a stage before the cloth product is input to the input conveyor. Further, after being put into the above process means after the cloth product has been folded, and at the same time, depending on the cloth product, the folding is not always carried out. Such cases are included because they may be discharged without passing through.

  The determination result in the determination unit is carried over until the cloth product is folded, which is a reflection of the technical intention of reflecting the determination result on the arrangement position of the cloth product at the time of separation after folding. Although it is possible to immediately discard the product as a defective product based on the result of discrimination in the inspection process department, this tends to stop the work halfway, and the folding process of the fabric product is delayed. It is possible to efficiently perform texture inspection and folding.

  An input conveyor that inputs a washed and dried fabric product into the folding process constitutes an inspection process unit together with a mass measuring device provided on the input conveyor in order to accurately measure the mass of the fabric product. The cloth product is input to the folding process by the input conveyor, and its mass is measured in the folding process. The mass measuring instrument measures the mass of the cloth product conveyed by the input conveyor. Therefore, it is structurally advantageous that the mass measuring instrument supports the load of the input conveyor. Moreover, although the measurement of mass is possible even while the cloth product is being conveyed by the input conveyor, it can be said that it is more desirable for precise measurement to be performed on the input conveyor that is stopped.

  In order to compare the measured value of the mass in the inspection step with the range of the reference value of the mass determined in advance for the cloth product, and determine whether the measured value is in the range of the reference value It comprises. The discriminating unit is a device centered on a central processing unit (CPU), but the folding device has a CPU for measuring the length and performing folding processing such as bi-folding and quadruple folding. A processing device is provided, and arithmetic processing necessary for the present invention can also be performed using the CPU.

  As an apparatus of the present invention, an electronic balance is used as a mass measuring instrument, and its output value is AD-converted, and compared with digital data indicating a range of reference values taking a normal distribution in a discriminator, and the measured value is a reference A configuration in which it is determined whether or not the value is within a range of values is preferable. As described above, the mass can be accurately measured, and the degree of wear of the fabric product can be accurately grasped as a numerical value. Specifically, fabric products that are not exhausted have sufficient fibers, such as hairy feet, to secure a sufficient air volume and give a soft touch, while increasing wear and tear. The fabric product has a hard feel, and this sensibility is one example of being grasped as a change in mass.

  In addition, as a cloth product which is the object of the present invention, there are cloth products such as towels and sheets as described above or clothes such as gowns and yukatas, which are main products handled in the linen supply industry. It is. Among them, face towels, bath towels and other towel products, which have a fluffy form and have a high degree of wear, are suitable as objects to be inspected for quality deterioration according to the present invention. In the present invention, “precise” measurement means measuring the mass of a fabric product (new mass) at the time of manufacture and the mass (waste quality amount) of a fabric product that has become unsuitable for use due to its texture. As long as the measurement can satisfy the condition for distinguishing the difference in mass (= new mass-waste quality amount), it is sufficient. If the measurement accuracy is increased, the accuracy is improved, and the accuracy is improved, so that it is possible to determine not only whether the product is a waste product but also to the level of the wear level, or it is possible to extend the application range to a lighter fabric product.

  As described above, the present invention is a method of inspecting the texture of the fabric product by precise measurement of mass, performing folding, and then separating according to the determination result, so that the one that has reached the limit of wear is removed, There is an effect that texture inspection, folding and sorting can be performed efficiently. In addition, according to the present invention, it is possible to maintain a certain quality by reducing the variation in the quality judgment of the fabric product, and also eliminate the waste of discarding the fabric product within the reference range. A folding device having a texture inspection function can be provided.

  Hereinafter, the present invention will be described in more detail with reference to the illustrated embodiments. FIG. 1 shows an example of a folding apparatus 10 having a fabric texture touch inspection function according to the present invention. The folding device 10 includes an input conveyor 11 that inputs a washed and dried cloth product into a folding process, and a mass measuring instrument 12 provided on the input conveyor 11 in order to measure the mass of the cloth product. It has a process part 13. The said inspection process part 13 is equipped with the structure independent of the other part for mass measurement. Therefore, in the embodiment, after the fabric product is put into the folding process, the mass is measured before folding (but it is also possible to measure the mass of the fabric product after folding).

  The cloth product is input to the inspection process unit 13 by the input conveyor 11, and the mass is measured in the process unit 13. The mass measuring instrument 12 measures the mass of the cloth product conveyed by the input conveyor 11. Accordingly, the mass measuring instrument 12 is installed on the apparatus main body side and supports the load of the input conveyor 11. An electronic balance is used for the mass measuring instrument 12 of the embodiment, and the electronic balance is mainly a load cell type and an electromagnetic type. The measured value is output as an electric signal in the load cell type, and is output as the current value of the coil in the electromagnetic type, but an electronic balance of either type is used for the apparatus 10 of the present invention. Reference numeral 14 denotes a pressing roll, which acts to press the conveyed fabric product onto the conveyor.

  Reference numeral 15 denotes a determination unit that determines whether or not the measured value is within the range of the reference value, and an output from the inspection process unit 13 is input thereto. The determination unit 15 compares the mass measurement value in the inspection process unit 13 with a predetermined mass reference value range for the cloth product, and determines whether the measurement value is within the reference value range. To do. At the same time, the determination unit 15 is a part of a folding device centered on a central processing unit (CPU). The folding device 10 is equipped with an arithmetic processing unit composed of a CPU for measuring the length and performing folding processing such as bi-folding and quadruple-folding, and the arithmetic processing in the determination unit 15 necessary for the present invention is also performed. This is done using the CPU.

  Reference numeral 16 denotes a stop sensor, which is disposed at the rear part of the input conveyor 11 and detects that the leading end of the cloth product has reached the same position, and acts to temporarily stop the operation of the input conveyor 11. In this embodiment, a long conveyor 17 is installed on the extension of the input conveyor 11. The conveyance conveyor 17 has a length necessary for measuring the length of the cloth product to be conveyed, and two length measurement sensors 18-1 and 18-2 are arranged near the front and rear ends thereof. .

  In the present embodiment, the input conveyor 11 becomes an uphill from the input side to the discharge side, and the transport conveyor 17 is also formed so that the upstream side coincides with the inclination. The ascending slope of the conveyor 17 becomes flat at the intermediate portion, and forms a conveyor 17A as a descending slope on the discharge side. Further, the lower conveyor 17B is formed substantially horizontally, and the transfer conveyor 17 has an available space 19 formed between the up-and-down upper conveyor 17A and the horizontal lower conveyor 17B. .

  A folding portion 20 is provided at the end of the transport conveyor 17 on the discharge side. The folding part 20 includes an introduction part 22 of a work W, which is a cloth product formed by an inclined part 17c provided on the lower conveyor 17B and an induction conveyor 21 installed therebelow, and the cloth product toward the work introduction part 22. Are provided with a folding knife 23 and a workpiece locking portion 24 (see enlarged views of FIGS. 1 and 6). The folding knife 23 is formed in a substantially J shape so as to wrap around the end portion on the discharge side, and a shaft that is rotatable toward the apparatus side at the base end portion 23b so that the front end portion 23a enters and exits the introduction portion 22 is formed. It is supported.

  The workpiece locking portion 24 can be temporarily held in a substantially U-shape with the conveyor conveyor discharge end by picking up the tip end side of the workpiece W that has been conveyed. If it does in this way, since the cloth product has already been folded in half, the folding knife 23 is operated once, and the folding is performed in four. If the folding knife 23 is actuated only once without picking up the workpiece tip, folding in half can be performed.

  The workpieces W folded by the folding unit 20 are conveyed to the sorting unit 25 arranged in order along the lower conveyor 17B. In the illustrated embodiment, three parts are prepared as the sorting unit 25, that is, a bath towel unit 26, a face towel unit 30, and a disposal unit 35. The bath towel portion 26 includes a bath towel drop sensor 27, a bath towel drop lid 28 and a brake 29, and is disposed adjacent to the induction conveyor 21. The bath towel drop cover 28 is composed of two doors having a double opening structure, and is opened and closed by a sensor signal.

  The face towel section 30 includes a face towel drop sensor 31, a face towel drop stopper claw 32, a face towel drop lid 33 and an actuator link 34, and is disposed adjacent to the bath towel section 26. The face towel drop cover 33 is composed of two doors having a double-open structure (arranged orthogonally to the bath towel), and the actuator link 34 is actuated by a sensor signal to open and close. Between the face towel part 30 and the bath towel part 26, a belt-up member 29a is rotatably provided around the support shaft. The belt-up member 29a is also rotated around the support shaft by a sensor signal. Thus, the conveyor belt of the lower conveyor 17B is lifted, and the belt conveying force is turned off to increase the accuracy of the stacking position. When stacking fabric products, the lid 28 is opened after being held against the claw of the stopper. If the belt of the lower conveyor 17B is in contact with the fabric product, the fabric product may be wrinkled due to the belt conveying force. Since the position varies, the above-mentioned problem is addressed by breaking the contact with the belt before hitting the nail.

  The discarding unit 35 includes a collection box 37 with casters, and is configured to receive a cloth product to be discarded via a transfer member 36 such as a slide chute installed on the exit side of the face towel dropping lid 33. Yes. 38 is a conveyor for bath towels and 39 is a conveyor for bath towels, which are located directly under the bath towel drop lid 28 and face towel drop lid 33, respectively, and carry out the separately laminated fabric products.

  The operation of the folding device 10 having the above-described configuration and the fabric product texture inspection function according to the present invention will be described with reference to FIG. In FIG. 3 and below, for example, a towel is set as the work W, and the cloth product is put into the input conveyor. When the work W is transported and the tip thereof moves to the stop sensor 16 (FIG. 4), the measurement is possible. It is detected that The input conveyor 11 is temporarily stopped by the detection signal of the stop sensor 16 and continues to move again. During this time, the mass measuring device 12 accurately measures the mass of the workpiece W and inspects the degree of wear (ST1). .

  Here, precise measurement means the mass of the fabric product at the time of manufacture (new product mass) and the mass of the fabric product that has become unsuitable for use due to its texture (waste quality amount). = New article mass-waste quality quantity). There is a difference in the idea depending on the type of fabric product, density and whether it is a luxury product or not. This condition is satisfied if the difference can be detected. However, the above numerical values are examples of specific fabric products until they get tired, and should not be taken in a limited way. In the measurement state, the total load of the workpiece W is applied to the mass measuring device 12.

  The measured value of the mass of the workpiece W is output as an electric signal in the load cell type, and is output as a current value of the coil in the electromagnetic type. 15 is stored as a mass in the memory constituting 15 (ST2). The mass data is sent to a central processing unit (CPU), and it is determined whether or not the measured value is within the reference value range of the workpiece W.

  The workpiece W that has finished measuring the mass is moved by the conveyor 17 and the arrival of the tip is detected by the first and second length measuring sensors 18-1 and 18-2. It is grasped as the length (FIG. 5), and is stored as length data in the memory constituting the determination unit 15 (ST3). The determination unit 15 calculates a folding point based on the length data sent (ST4), and the result is sent to the folding unit 20. The folding unit 20 is controlled to perform folding according to a predetermined sequence. The

  In the illustrated embodiment, data indicating the range of the mass reference value of the fabric product is input to the determination unit 15 (ST6), and the lengths of the bath towel and the face towel are input (ST8). When the workpiece W reaches the discharge end portion of the transfer conveyor 17 (FIG. 5), the workpiece locking portion 24 operates to scoop up the tip end portion of the workpiece W, so that the entire workpiece W is between the transfer conveyor discharge end. And temporarily held in a U-shape. The folding knife 23 is actuated once with respect to the intermediate point of the workpiece W, that is, the folding point of the workpiece W calculated in step 4, which is in a state of hanging in two folds. Performed (FIG. 6, ST5).

  During this time, the determination unit 15 determines whether or not the mass data measured and stored in step 2 (ST2) is within the reference value range of the workpiece W that has been input in advance (ST7). When the measured and stored mass data is within the range of the reference value of the workpiece W that has been input in advance, it is not discarded, but is larger than the length L of the workpiece W (ST9). Are classified as bath towels and face towels when they are small, and are conveyed to the bath towel section 26 (ST12) and the face towel section 30 (ST13) according to the respective discrimination results (FIG. 7).

  Then, when the mass data measured and stored in step 2 (ST2) is not within the range of the reference value for the mass of the workpiece W inputted in advance, it is determined that the consumption has exceeded the limit (ST10). Based on the determination result, it is conveyed to the discarding unit 35 (ST14). As shown in detail in FIG. 7, the work W passes through the face towel drop lid 33 and reaches the outlet 40, and the chute of the transfer member 36 is slid down and collected in the collection box 37.

  Thus, in the folding apparatus 10 which concerns on this invention, the wear degree can be test | inspected by measuring the mass of the workpiece | work W, ie, a fabric product, precisely. In order to strictly compare the mass of the fabric product with the reference value, it is ideal to know the mass of each fabric product before consumption (when new). The mass before consumption can be estimated from the size and average density of the corresponding cloth product that can be accurately measured. However, in order to do so, it is necessary to repeat the above measurement and calculation for each cloth product. It is not efficient. On the other hand, the quality of various products supplied to the market by the fabric manufacturer is constant, and if the standard of the corresponding fabric product is set to the standard value, even if there is some variation, the variation is a normal distribution. It is thought that it is within the range according to. Therefore, by obtaining a certain accuracy based on this, the comparison with the current mass with respect to the reference value is accurately performed, and the determination result reflects the texture of the fabric product.

It is side explanatory drawing which shows an example of the folding apparatus provided with the texture test | inspection function of the fabric product which concerns on this invention. It is a flowchart which shows the flow of operation | movement in an apparatus same as the above. It is side explanatory drawing which shows the state which supplied the cloth product to the apparatus same as the above. It is side surface explanatory drawing which similarly shows the state which is measuring mass. It is side surface explanatory drawing which similarly shows the state in measuring the workpiece | work length. It is the side explanatory drawing and principal part enlarged view which show the fold state of a workpiece | work similarly. It is the side explanatory drawing and principal part enlarged view which similarly show the classification state of a workpiece | work.

DESCRIPTION OF SYMBOLS 10 Folding apparatus provided with the texture test | inspection function of a cloth product 11 Input conveyor 12 Mass measuring device 13 Inspection process part 14 Apparatus main body 15 Discriminating part 16 Stop sensor 17 Conveyor 18-1, 18-2 Length measuring sensor 19 Empty place 20 Folding Section 21 Guide conveyor 22 Introduction section 23 Folding knife 24 Work stop section 25 Sorting section 26 Bath towel section 27 Bath towel drop sensor 28 Bath towel drop cover 29 Belt up plate 30 Face towel section 31 Face towel drop sensor 32 Face towel drop stopper Claw 33 Face towel drop lid 34 Actuator link 35 Disposal part 36 Handing member 37 Collection box 38, 38 Conveyor

Claims (4)

A folding device having a function of inspecting the texture of a washed and dried fabric product,
Before the laundry, dried fabric product is put into the folding process or after the fabric product is put into the folding process, a mass measuring instrument for measuring the mass of the fabric product is provided,
By comparing the measured value of the mass with the range of the reference value of the mass related to the fabric product, and determining whether the measured value is in the range of the reference value , the test for the texture of the fabric product Provide the discriminator on the device body side,
A folding device having a texture inspection function of a fabric product configured to sort folded fabric products according to the determination result in the determination unit. A folding device having a function of inspecting the texture of a washed and dried fabric product,
An inspection process unit comprising a loading conveyor for loading a laundry and dried fabric product into the folding process, and a mass measuring instrument provided on the loading conveyor for measuring the mass of the fabric product,
While conveying the cloth product that has finished the inspection process section, at least one folding section that folds the cloth product into a required form by the folding means in the conveyance process;
By comparing the measured value of the mass in the inspection process unit with the range of the reference value of the mass determined in advance for the cloth product, and determining whether or not the measured value is within the range of the reference value, And a discriminator for inspecting the texture of
A folding device having a texture inspection function of a fabric product configured to sort the folded fabric product according to the determination result in the determination unit and to discard the fabric product outside the range of the reference value. The mass measuring instrument is equipped with a texture inspection function for a cloth product according to claim 2, wherein the mass measuring instrument supports the load of the input conveyor, and the mass measurement is performed on the input conveyor stopped. Folding device. An electronic balance is used as a mass measuring instrument, and the output value is AD converted and compared with digital data indicating a range of reference values having a normal distribution by the discriminator, and whether the measured value is within the range of the reference values. The folding apparatus provided with the texture test | inspection function of the fabric product of Claim 1 by which it is discriminate | determined.

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